[PATCH] bootimg/image: Enhance bootimg to respect RM_OLD_IMAGE

[Richard Purdie <richard.purdie@linuxfoundation.org>]

Currently, iso and hddimg links don't respect RM_OLD_IMAGE. This
updates them to use the common symlinks code so that they behave
like the rest of the system.

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/bootimg.bbclass b/meta/classes/bootimg.bbclass
index ec9d0b7..ed9afb9 100644
--- a/meta/classes/bootimg.bbclass
+++ b/meta/classes/bootimg.bbclass
@@ -172,10 +172,6 @@ build_iso() {
 	fi
 
 	isohybrid $isohybrid_args ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.iso
-
-	cd ${DEPLOY_DIR_IMAGE}
-	rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.iso
-	ln -s ${IMAGE_NAME}.iso ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.iso
 }
 
 build_fat_img() {
@@ -280,10 +276,6 @@ build_hddimg() {
 		fi
 
 		chmod 644 ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
-
-		cd ${DEPLOY_DIR_IMAGE}
-		rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hddimg
-		ln -s ${IMAGE_NAME}.hddimg ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hddimg
 	fi
 }
 
@@ -294,7 +286,10 @@ python do_bootimg() {
         bb.build.exec_func('build_efi_cfg', d)
     bb.build.exec_func('build_hddimg', d)
     bb.build.exec_func('build_iso', d)
+    bb.build.exec_func('create_symlinks', d)
 }
+do_bootimg[subimages] = "hddimg iso"
+do_bootimg[imgsuffix] = "."
 
 IMAGE_TYPEDEP_iso = "ext4"
 IMAGE_TYPEDEP_hddimg = "ext4"
diff --git a/meta/classes/image.bbclass b/meta/classes/image.bbclass
index fb923d9..782d555 100644
--- a/meta/classes/image.bbclass
+++ b/meta/classes/image.bbclass
@@ -397,7 +397,7 @@ python () {
         d.setVarFlag('do_image_%s' % t, 'fakeroot', '1')
         d.setVarFlag('do_image_%s' % t, 'prefuncs', debug + 'set_image_size')
         d.setVarFlag('do_image_%s' % t, 'postfuncs', 'create_symlinks')
-        d.setVarFlag('do_image_%s' % t, 'subimages', subimages)
+        d.setVarFlag('do_image_%s' % t, 'subimages', ' '.join(subimages))
         d.appendVarFlag('do_image_%s' % t, 'vardeps', ' '.join(vardeps))
         d.appendVarFlag('do_image_%s' % t, 'vardepsexclude', 'DATETIME')
 
@@ -460,15 +460,16 @@ python create_symlinks() {
     link_name = d.getVar('IMAGE_LINK_NAME', True)
     manifest_name = d.getVar('IMAGE_MANIFEST', True)
     taskname = d.getVar("BB_CURRENTTASK", True)
-    subimages = d.getVarFlag("do_" + taskname, 'subimages', False)
+    subimages = (d.getVarFlag("do_" + taskname, 'subimages', False) or "").split()
+    imgsuffix = d.getVarFlag("do_" + taskname, 'imgsuffix', True) or ".rootfs."
     os.chdir(deploy_dir)
 
     if not link_name:
         return
     for type in subimages:
-        if os.path.exists(img_name + ".rootfs." + type):
+        if os.path.exists(img_name + imgsuffix + type):
             dst = deploy_dir + "/" + link_name + "." + type
-            src = img_name + ".rootfs." + type
+            src = img_name + imgsuffix + type
             bb.note("Creating symlink: %s -> %s" % (dst, src))
             if os.path.islink(dst):
                 if d.getVar('RM_OLD_IMAGE', True) == "1" and \